Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

ADEKA ADK STAB PEP-36 Antioxidant

ADEKA ADK STAB PEP-36 is a high-performance phosphite antioxidant from ADEKA’s ADK STAB series, designed for polyolefins and engineering plastics. It offers exceptional melt stability, hydrolytic resistance, and synergistic effects with phenolic antioxidants, ensuring long-term thermal protection during processing and end-use.
  • adeka adk stab pep 36 antioxidant_bdb647c0
  • adeka adk stab pep 36 antioxidant_bdb647c0

Features Of ADEKA ADK STAB PEP-36 Antioxidant

  1. High-performance phosphite antioxidant offering exceptional melt stability for polyolefins during high-temperature processing.

  2. Excellent hydrolytic stability compared to conventional aryl phosphites, ensuring consistent performance in humid or moisture-prone environments.

  3. Synergistic with hindered phenolic antioxidants (e.g., ADK STAB AO-50, AO-60), enhancing overall oxidative resistance in multi-stabilizer systems.

  4. Low volatility and minimal odor, supporting cleaner production and improved worker safety in extrusion and injection molding operations.

  5. Non-staining and compatible with pigments, fillers, and other additives commonly used in color-concentrate and masterbatch formulations.

Typical Applications Of ADEKA ADK STAB PEP-36 Antioxidant

  1. Polypropylene (PP) homopolymers and copolymers for automotive interior parts and under-hood components.

  2. Polyethylene (PE) films, including heavy-duty shipping sacks and agricultural mulch films requiring long-term thermal stability.

  3. PP and PE fibers and nonwovens used in geotextiles and hygiene products exposed to extended heat history.

  4. Recycled polyolefin compounds where enhanced stabilization is critical to counteract accumulated degradation.

  5. Masterbatches for food-contact and medical-grade plastic applications complying with FDA and EU regulatory frameworks.

Specifications Of ADEKA ADK STAB PEP-36 Antioxidant

Chemical TypeTris(2,4-di-tert-butylphenyl) phosphite
Product FormPellets
AppearanceWhite to off-white free-flowing pellets
Melting Point195–205 °C (by DSC)
Assay (Purity)≥ 99.0% (by GC)
Volatile Matter≤ 0.2% (at 120 °C, 2 h)
Heavy Metals (as Pb)≤ 5 ppm
Primary ApplicationsPolyolefins (PP, HDPE, LDPE), masterbatches, recycled resins


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